44-gyosi Saengjon Sueop
44th Period: Survival Class · 44교시 생존수업
Sinopse
Mysterious black circles have started appearing all over the world, and whoever falls in doesn't come back out. Then one day, a black circle swallows an entire school and everyone in it, turning it into a twisted maze of nightmares. Will Doyun and his classmates find a way out?
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